Chicago Weather in January

What's the weather like in Chicago, United States in January 2019?

The climate in Chicago during January can be summarized as cold and reasonably dry.

January is in the winter in Chicago and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -1°C (30°F), whilst at night -10°C (14°F) is normal.

Chicago weather averages (imperial / metric)

Daytime temperature

-1.2°C29.8°F

Nightly temperature

-10.2°C13.6°F

Average temperature

-5.7°C21.7°F

Daily sunshine

4.8 hrs

Avg rainfall

44 mm1.7 ins

Rainy days

12 days

Sea temperature

4.4°C39.9°F

Humidity

73%

Windspeed

20.2kph13 mph

On average January is the 2nd driest month of the year in Chicago with around 44mm1.7 inches of rain making it a reasonably dry time to visit.
This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.8 hours of sunshine per day.

January temperatures in Chicago

January rainfall

January hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in January 2019.